Foot-brake control



Sept. 9 1924. Y 1,507,873

B-..-w. wANDERsEE y Foo'r B'Rms CONTROL Fil'ed March 6, 1924 LN vE/v TDH.

Patented Sept. 9, 1924.

UNITED STAT-Es BENJAMIN w. wANnEnsEE, or xoNraosE, mNNnsoTA.

FOOT-BRAKE CONTROL.

application mea umn s, 1m. semi m.l sans?.

To all whom it may concern.'

Be it known that I, BENJAMIN W. WAN- manana, a citizen of the UnitedStates, residingl at Montrose, in the county of Wright an State of Minnesota, have invented certain new and useful Improvements in Foot-Brake Control; and I do hereby declare the following to be a full, clear, and exact descri tion of the invention, such as will enab e others skilled in the art to which it appertains to make. and use the same.

This 'invention relates to a clutch operating means for an automobile and while the invention ma be a plied to various other automobiles, 1t particularly is designed for use with the well known Ford type of automobile. In machines of said type, a

brake mechanism is provided operated by a pedal and an emergency brake mechanism is also provided which is usually operated by a lever. In the standard machine, the pedal operated brake is not 'adapted to be locked in braking position. It sometimes hap ens that the machine is on such a steep gra e or that other conditions exist so that the emergency brake is not suiiicient to hold the ma chine. It is desirable, therefore, to have an additional brake power at such times and it is also desirable to have additional brake power at certain times if the machine is left standing.

It is an object of this invention, therefore, to' provide means for holdin the pedal operated brake in braking position when the emergency brake .is in operation.

It 1s a further ob'ect of the invention to .provide a means or holding the pedal operated brake in braking position, which means normally is inoperative, but which is rendered operative by a means controlled by the lever operating the emergency brake so that the locking means for the pedal operated brake will be rendered operative when the emergency brakeis in operative position.

These and other objects of the invention will be fully set forth in the following description made in connection with the accompanying drawings in which like reference characters refer to the same parts throughout the different views, and in which Fig. 1 is a plan view of a portion of an automobile showing the device;

Fig. 2 is a view in side elevation of the v parts shown in Fig. 1;

Fig. 3 lis a view in front elevation of a ratchet bar used;

Fig. 4 is a view'in sideelevation of said ratchet bar, as seen from the right of' Fig. 1;

Fig. 5 is a plan view of a member embracing the edal lever and one end of a rod connec thereto;

Fig. 6 is a top plan view of a pawl'used and the rear part of the rod connecting the same to the pedal lever also showing the ratchet bar in cross section; and

Fig. 7 is a top plan view of a yoke adapted to be attached to the emergency brake lever and showing a portion of the spring attached thereto.

Referring to the drawings, one side member of the frame of an automobile is shown as 1, to which is connected and supported thereby the end 2 of the transmission casing, said parts being shown of the type in the well known Ford automobile. The pedal lever for operating the usual edal operated brake is illustrated as 3 an the lever which operates the emergency brake is shown as 4, said lever being pivoted about the stud or shaft 5 supported at one end by frame 1. The parts thus far described are ofthe usual construction of the standard Ford car and are all of the parts thereof that it is necessary to consider.

In accordance with the resent invention, a ratchet bar 6 is provide having one end 6a bent substantially at a right angle and apertured and havin its other end 6" bent laterally and twiste to stand at an angle which end is also provided with a erture or bolt hole 6. Said rack bar 6 is bo ted to the frontl of the iian e on the transmission casing 2, as shown 1n Fig. 2, and an attacha small chain which is, in turn, connected to one end of a tension spring 9, said spring being connected at its other end to a yoke or clip 11 clamped to the lower portion of lever 4. Cli l1 merely comprises a U-shaped stri o sheet metal pierced at its ends by a hea. ed and nutted clamping bolt 12 and having a lug 11a struck u therefrom at its bight end. A pawl 13 in the form of a rectangular block is provided and an anguiar strip 14 of sheet metal has one side overlying the top of block 13 and its other and longer side extending along and beyond one edge thereof. The parts 13 and 14 are threaded and engaged by the threaded end of a. rod 15, a check nut 15 bein also dis osed on the threaded end of sai rod an arranged to contact. the top of plate 14. The rod 15 extends forward over the chain 3 and has its forward end bent downwardly and engaged in a'lug 15a projecting rearwardly from and secured to a hook clam 16 adapted to embrace the lowerportion o pedal lever 3 and to be clamped thereto by a set screw 17.

It will be seen from Fi 2 that the bar 15 and pawl 13 have their longitudinal axes extendin downwardly and the upper rear corner o pawl 13 fits in the teethv in the ratchet bar 6. When the emergency brake lever 4 is in inoperative or forward position, the chain 8 and spring 9 are uite slack and the pawl 13 and bar 15 then rop down at their rear ends so that the pawl 13' does not engage the teeth of ratchet bar 6. It will be seen that the vplate 14 extends at one side of ratchet bar 6 forming a guiding means to hold the pawl 13 in proper relation to said bar and this guidin effect is also assisted by the rear end of ro 15 which projects along the other side of ratchet bar 6. When emergency brake lever 4 isin its forward position the pedal lever 3 can be operated as usual to apply or release the pedal operated brake. If the emer ency brake lever now be pulled f rearward y to apply the emergency brake, the chain 8 will be pulled quite taut by said lever and spring 9 and the chain will lift the rear end of bar 15 and awl 13 and bring the same against the teetli of ratchet bar 6. If pedal lever 3 now be moved forwardly to apply the edal operated brake, it willbe held in such orward or brake applying position by the pawl 13 engaging ywith ratchet bar 6 and will remain in this position until either the emergency lever 4 is moved forward or the pawl is disengaged by hand. The parts, of course, are not readily accessible to be operated by hand and the pedal lever will, therefore, be held in its brake `applying pcsition'until the emergency lever '4 is' released. it is 'thus seen that when the emergency/brake is applied, the pedal operated brake can aise be applied and automaticaliy heid in appiied position so that considerahie additional braking the machine. It wil be seen that the rod 15 can be adjusted in the pawl 13 so that the device can properly be adjusted to correct position when it is installed.

From the above description it is seen that applicant has provided a simple and efficient means for obtaining the additional braking power and holding the pedal operated brake in operative position. The parts of the device are few and simple and can quickly and easily be applied to the standard machine. When once applied,-they will operate effectively and require no attention for maintenance. The device has been am ly demonstrated in actual practice and ound to be very successful and ecient.

It will, of course, be understood, that various changes may be made in the form, details, arrangement and proportions of the parts .without departing from the scope of applicants invention, which, generally stated, consistsin a device capable of carrying out the objects above set forth, such as shown and described and deiined 1n the= appended claims.

Vhat is claimed is: 1. The combination with a Ford or other ing said edal operated brake in braking ower is provided fork position w en it is operated after said emer-A i ency brake is operated, and means for rendering said means operative.

2. The combination with a Ford or other automobile having a pedal o erated brake and an emergency brake, of a oldng means for retaining said pedal operated brake 1n braking position, said means normally being in inoperative position, a lever operatln said emergency brake, and means controlle by said lever for rendering said first mentioned means operative when said lever is' moved to position to apply said emergency brake.

3. The combination with a Ford or other automobile having a pedal operatedl brake and an emergency brake, of a ratchet bar, a pawl connected tothe pedal of said pedal operated brake normally disposed 1n inoperative relation to said rack bar, a lever for operating said emergency brake and means connected to said lever and pawl adapted to move said pawl into operative relation to saidl ratchet bar whereby when said brake pedal is o erated after said lever said pedal will be he d in brake applied position.

4. The combination with a Ford or other automobile having a pedal operated brake and an emergency brake, of a ratchet bar secured to the transmission casing, a car extending 'from the top of said har and aise connected to said casing, a pawi to cti-operate with said ratchet harA but normally inoperative position, guiding means ioo 1,507,878 l y y v a' for maintaining said pawl alined with said. member acting on said connectionv and said ratchet bar, a connectmn between said pawl pedal will be held in brake applying posiand brake edal7 a lever for'operatingsaid tion when moved thereto. l, 4 emergency rake,'and a flexible means con- 5. The structure set forth-in claim 4, said a -nected to the said second mentioned bar exconnection of said pawl to said pedal lever 15 tending under said connection and conbeing adjustable, and a resilient means innected tosaid lever whereby when said lever' ter osed in said flexible member. is moved to brake applying position, said ntestimony whereof Iaiiix my signature. pawl will be brought into operative posi- 10 tion to saidratchet ybar by said exible 'BENJAMIN W. WANDERSEE. 

